Not sure if you're already aware, but attempts at making nuclear jet engines (for the purposes of putting on a jet aircraft) were attempted in the 50s. https://

Not sure if you're already aware, but attempts at making nuclear jet engines (for the purposes of putting on a jet aircraft) were attempted in the 50s. https://en.wikipedia.org/wiki/Aircraft_Nuclear_Propulsion https://en.wikipedia.org/wiki/Aircraft_Nuclear_Propulsion Allegedly, Russia finally managed to get this working in 2018, with a nuclear powered missile having "infinite range", although there appears to be no real open information besides Russia saying "we have it" https://en.wikipedia.org/wiki/9M730_Burevestnik https://en.wikipedia.org/wiki/9M730_Burevestnik